There are too many wires in this world! Why have another one connected to your keyboard? The Logitech® family of Keyboards and Mice use the Logitech® Unifying receiver, which is our favorite wireless connection device. The USB receiver itself, is very tiny, and it can run both the keyboard and mouse. We’ve chosen the Logitech® Wireless Keyboard K340 as our standard keyboard. Why? First off, the layout of this keyboard is very "CAD Operator" friendly. You have a standard 10-key number pad. However, the K340 places the 10-key pad closer to center, compared to most keyboards. This allows you to enter numbers faster, and allows your right hand to travel less. This keyboard is also places the "Home", "End", "Page Up", & "Page Down" keys in a very and logical location, just above the number pad.